BR9712804B1 - Method and apparatus for determining the phase and / or amplitude information of an electromagnetic wave. - Google Patents

Method and apparatus for determining the phase and / or amplitude information of an electromagnetic wave.

Info

Publication number
BR9712804B1
BR9712804B1 BRPI9712804-0A BR9712804A BR9712804B1 BR 9712804 B1 BR9712804 B1 BR 9712804B1 BR 9712804 A BR9712804 A BR 9712804A BR 9712804 B1 BR9712804 B1 BR 9712804B1
Authority
BR
Brazil
Prior art keywords
modulation
electromagnetic wave
gates
drift
accumulation
Prior art date
Application number
BRPI9712804-0A
Other languages
Portuguese (pt)
Other versions
BR9712804A (en
Inventor
Rudolf Schwarte
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19704496A external-priority patent/DE19704496C2/en
Application filed filed Critical
Publication of BR9712804A publication Critical patent/BR9712804A/en
Publication of BR9712804B1 publication Critical patent/BR9712804B1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4913—Circuits for detection, sampling, integration or read-out
    • G01S7/4914—Circuits for detection, sampling, integration or read-out of detector arrays, e.g. charge-transfer gates
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • G01S7/4915—Time delay measurement, e.g. operational details for pixel components; Phase measurement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G01S17/32—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S17/36—Systems determining position data of a target for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated with phase comparison between the received signal and the contemporaneously transmitted signal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G01S17/89—Lidar systems specially adapted for specific applications for mapping or imaging
    • G01S17/894—3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optical Radar Systems And Details Thereof (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Holo Graphy (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

The method includes using the radiation of an electromagnetic wave on the surface of at least one photonic mixing element having at least one pixel. The pixel has at least two light sensitive modulation photogates (Gam,Gbm) and allocated accumulation gates (Ga,Gb). Modulation photogate voltages (Uam(t),Ubm(t)) are applied at the modulation photogates, which are formed as Uam(t)) = Uo + Um(t) and Ubm(t) = Uo - Um(t). A DC voltage is applied at the accumulation gates (Ga,Gb), with an amplitude equal to the sum from Uo and the amplitude of the modulation voltage Um(t). The charge carrier produced by the incident electromagnetic wave in the spatial charge zone of the modulation gates, are exposed to the potential voltage drops of a drift field, depending on the polarity of the modulation voltages, and drift to the corresponding accumulation gate (Ga,Gb). The drift charges (qa,qb) are derived respectively at the accumulation gates.
BRPI9712804-0A 1996-09-05 1997-09-05 Method and apparatus for determining the phase and / or amplitude information of an electromagnetic wave. BR9712804B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19635932 1996-09-05
DE19704496A DE19704496C2 (en) 1996-09-05 1997-02-07 Method and device for determining the phase and / or amplitude information of an electromagnetic wave
PCT/DE1997/001956 WO1998010255A1 (en) 1996-09-05 1997-09-05 Method and device for determining the phase- and/or amplitude data of an electromagnetic wave

Publications (2)

Publication Number Publication Date
BR9712804A BR9712804A (en) 1999-11-23
BR9712804B1 true BR9712804B1 (en) 2011-04-19

Family

ID=26029051

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9712804-0A BR9712804B1 (en) 1996-09-05 1997-09-05 Method and apparatus for determining the phase and / or amplitude information of an electromagnetic wave.

Country Status (14)

Country Link
US (2) US6825455B1 (en)
EP (1) EP1009984B1 (en)
JP (1) JP4060365B2 (en)
CN (1) CN1103045C (en)
AT (1) ATE254758T1 (en)
AU (1) AU715284B2 (en)
BR (1) BR9712804B1 (en)
CA (1) CA2264051C (en)
CZ (1) CZ300055B6 (en)
ES (1) ES2206748T3 (en)
HU (1) HU227654B1 (en)
MX (1) MXPA99002142A (en)
RU (1) RU2182385C2 (en)
WO (1) WO1998010255A1 (en)

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